Getting Started

Install Kria, run your first program, and explore the interactive REPL.

Prerequisites

To build Kria from source, you need Rust 2021 edition or later. Install Rust using rustup. 

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Installation

Clone the repository and build Kria in release mode:

git clone https://github.com/krialabs/kria-lang.git
cd kria-lang
cargo build --release

The compiled binary will be at target/release/kria. You can add it to your PATH or run it directly.

Your First Program

Create a file named hello.krx:

set x = 5
set y = 3
print(x + y)

Run it with:

./target/release/kria hello.krx

Output: 8

Interactive REPL

Start the interactive Read-Eval-Print Loop with no arguments: 

./target/release/kria

The REPL provides a persistent session where variables and functions stay in scope until you reset or exit.

Meta Commands

  • :help — Show available commands
  • :reset — Clear all variables and functions
  • :exit — Exit the REPL

Try this in the REPL:

set name = "Kria"
print(name)
fn greet(x) { return "Hello, " + x }
greet(name)

Next Steps

Now that you have Kria running, explore the other documentation sections: